Due to the trade dispute between Japan and South Korea, the Japanese government decided in early July to ban the export of three important semiconductor and Display Panel materials to South Korea, forcing South Korean companies to embark on a path of independence. LG has confirmed that its panel factory has completed the use of domestic hydrogen fluoride materials to replace Japanese imports, 100% of which are made in Korea.
High-purity Electronic-grade hydrogen fluoride is a type of fluorine fine chemical used in semiconductor manufacturing processes to remove unnecessary chemicals adhering to chemical vapor deposition furnaces after film deposition, plasma etching, photoresist patterning Subsequent processes such as etching grooves or holes are a very important raw material in semiconductor production, and Japanese companies have a major share in this field.
After Japan issued export restrictions, the export of hydrogen fluoride materials to South Korea dropped to 0 in August, but this move did not affect the chip and panel production of South Korean companies such as Samsung, SK Hynix and LG. They used 3-5 in stock. In the months of 2019, domestic substitution was actively carried out, among which hydrogen fluoride is a relatively easy field to achieve success.
Compared with semiconductor production, the high-purity hydrogen fluoride required for panel production is also easier to replace, so LG has taken the lead in making progress in this regard. In early September, it announced the use of hydrogen fluoride produced in Korea to replace materials imported from Japan, and the test results were very successful.
Previously, LG replaced mainly gaseous hydrogen fluoride, and now the more difficult domestic replacement of liquid hydrogen fluoride has also succeeded. On the 14th, LG’s LGD company said that the liquid hydrogen fluoride used in the panel production process has been fully replaced with Korean products in the near future. Then use imported products from Japanese companies.
Compared with LG, Samsung and SK Hynix are also actively carrying out the replacement of Japanese materials, but the main products of these two companies are semiconductor chips. The dependency is higher than LG, and it is not so easy to replace.